Lock for cash drawers



' 1,548,123. W'. E.'DUNNING ET AL Aug. 4-, 1925.

LOOK FOR CAEK'DR WERS Filed A ril "17, 1922 3 Shgets-Shegt 1 Z Elk newton Aug. 4, 1925.

W. E. DUNNENG ET AL LGCK FOR CASH DRAWERS Filed April 17, 1922 3 Sheets-Sheet 5 W mom Patented Aug. 4, 1925.

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OHIO.

as A'L'LiANeE, o'HIo, A cter'oesnot or "Loc'K CASH menses.-

A spucauon file'fl April 17, latte. Serial no. ssesos;

To all whom. it may concern: 1

Be it known that W6, VVIULIA1\I E; Dun NZIN'G and JACOB BACHOFEN, citizens of the United States, residing'at Alliance, in the county of Stark and State of Ohio; have invented certain new and useful Improvements in Locks for Cash Drawers, of which the follow'ing is aspecifieatien.

The invention relates to looks for cash 1'0 drawers and the like adapted to be released by simultaneously pressing two of a larger number etpush buttons; and the object of the improvement is to provide mechanical means for lockii'i g and releasing the drawer 5 combined with electrical means for sound"- ing the signal.

The improvement illustrated in the ac'coinpanying dnawings forming part hereer, in whi-eh: I p

Figure I is a plan View 'ofa drawer or case containing a cash drawer and showing the mechanic-a1 locking and electrical signailing device;

Fig. II, a plan' 'vi'ew of the push button actuating mechanism, as am line 11 11, Fig;- V;

Fig. III, a fragmentary section on line II 'III, Figs I and II, showing one of the loci: pperating push buttons;

' Fig. IV, a tra meitary section on line I'V-IV, Fig. I showing the push arm and push bar;

Fi'g V, a longitudinal section of the case enline V'V, Fig. I;

Fig. VI, a longitudinal section of the f'earjpart of the case, -on line VI VI, Fig. 1, showing the case drawer closed and lacked;

4 Fig. VII, a similar View showing the cash drawer unlocked and part way opened;

Fig. VIII, an enlarged plan View of the lock ine'chanis'm;

Fig. IX, a rear View of the same, showing the sides of the bracket in section, on

tine IX;IX, Figs. VIII and X;

Fig. X, a side elevation of the sa1ne ,'showiiig the'baek of the bra'ket in section on line X X, Figs; VIII and IX. H

, Similar numerals refer to similar parts thifoughout the drawings.

The case 1 in which the cash drawer '2, is contained, may be of any form or a1"- rangement, and as shown is preferably in M the form of a drawer adapted to be inserted ift a larger case" forming the base er a filing appliance, an adding machine or other accounting appliance.

The case may be divided bya longitudinal partition '3 into two "comp'artments, in one of which the cash drawer -2- may be entered, and the other one of which the dry cells i, a switch 5 and an electric hell 6 may be located, as shown in Fig. I.

The front end of the signal compartment may be provided with extension- -i'n which may be located a roll of re'c'brd paper 8-, upon which "entries can be mee through a transverse aperture in the upper wall 10 of the extension, and in the rear end "of said wall may be mounted the push.

buttons 11 and 11.

I A transverse rock bar 12 is journaled iii the forward end of the case in rear' of the push buttons, and upon the rock bar is adjustably secured a rock arm 13 extending downward and forward in rear of the push buttons. On the lower end of the rock-arm is centrally swiveled a cross bar 1 1 located with its ends in line with the afie's of two of the push buttons 11,by means of which the rock bar may be rotated.

The push buttons 11 and 11 are normally located within the rim of "cup f guides 15, and each button is provided with an atrial stem 16 extending through an "aperture 17 in the bottom of the cup guide. Upon the inner end of each stem is form-ed a head 18 or 18, which stops the outward movement of the button; there being a coiled spring 19 around the stem between the bottom of the button and the bottom of the cup, pressing the button outward in normal or inoperative position. v p A pair of finger plates 20 extend inward from the bottom of the cup on each side of the heads 18' on the Steins of the buttons 11-, which may be referred to as the inactive buttons; and'on each finger plate is provi'deda binding post 21 by which is secured coiled conductor wires 22 in circuit with electric conductors 2'3 incircu'it with-the electric cells 4 and the signal hell 6,: thecircui't being con'trolled'by a switch '5. be

A contact spring 24 is prov'idedi oni'the inner side of each finger plate, and when an inactive button 11 is pushed inward, the head on the inner end of the stern impinges the contact springs and closes the circuit and rings the signal bell. The head'1'8' on the stem of each active pushbutton; 11- is in the form of a disk flange, which impinges the conductor wires and closes the circuit and rings the signal bell when the button is pushed inward.

The stem 18 of each active push button 11 is extended inward in the form of a push post 25, the inner ends of which posts are normally spaced at an interval from the ends of the swiveled cross bar 14 on the end of the rock bar 13 as shown in Fig. 2; so that when one only of the active buttons is pushed inward to impinge the swiveled cross arm, the same will swing upon its pivot, as shown by broken lines in Fig. 2, without moving the rock arm; but when both active push buttons are pushed inward to simultaneously impinge the ends of the cross bar, the rock arm 13 will be swung and the rock bar 12 rotated for releasing the lock of the cash drawer.

The cash drawer 2 may be provided with flanges 26 on its upper edges, which may ride upon roller wheels 27 mounted on the walls of the case; and upon the rear end of the cash drawer is secured a bracket 28 to which the stem 29 of an upturned hook 30 is pivoted. The hook is held upward in normal position by a spring 31, and is stopped in this position by a shoulder 32 on the end of the stem, as shown in Figs. VI and VII.

The locking mechanism for the cash drawer may include a U-shaped plate bracket 33 secured by its rear wall to the back of the case, and having a depending hook 34 pivoted on a spindle 35 extending between its side walls; the hook being normally held downward in the path of the cash drawer hook 30 by a coiled spring 36.

A controlling plate 37 is pivotally mounted at its forward edge upon the spindle 38 extending between the side walls of the bracket at the upper forward corner thereof, and the rear end of this plate may be pressed downward by a coiled spring 38, located around the spindle.

A bell crank 39 is pivoted at 40 in abracket 41 mounted in the case above the cash drawer. One arm of the bell crank extends rearwardly and to its ends is pivoted a pendant bar 42, the rear end of which bar is operatively connected to the rear end of the controlling plate, as by an L-tongne 43 extending through a slot 44 in the plate and engaging its lower side, and a crosspin 45 extending through the bar engaging its upper end in front of the L-tongue; so that the controlling plate may be swung upward and downward to a limited extent by the bell crank.

. The other arm of the bell crank extends downward and is pivotally connected with the rear end of a push bar 46 which is mounted to slide endwise in bearings 47 mounted in the case above the cash drawer,

which push bar 46 extends forward to the rear side of a push arm 48 depending from the transverse rock bar 12 at the forward end of the case. The push bar is normally pressed forward against the push arm by a coiled spring 49 located around the bar between one of the bearings 47 and a collar 50 secured to the push bar; and the parts are so proportioned and arranged that the controlling plate 37 will be normally held in horizontal position, as shown in Fig. X of the drawings.

The depending hook 34 of the lock is provided on each side with an upwardly extending finger 51, the upper ends of which fingers normally enter notches 52 in the sides of the controlling plate with the ends of the fingers bearing against the rear sides of the notches, as shown by full lines in Fig. X.

The ends of the hooks 30 and 34 are beveled so that when the cash drawer is pushed inward, the hook 30 will impinge the hook 34, and after swinging downward to clear it will spring upward into locking engagement, therewith, as shown in Figs. VI and X; the hooks being held in press ing engagement by pressure of a conical coiled spring 53 which is secured to the back of the case and is impinged and compressed by the rear end of the drawer when it is pushed inward for an engagement of the locking hooks.

The locking engagement of the hooks may be released by simultaneously pushing the two buttons 11 inward, which rotates the rock bar 12 and moves the push bar 46 rearward so as to lift the controlling plate upward and disengage the rear edges of its notches 52 from the upper ends of the fingers 51 on the hook 34; whereupon the fingers are free to swing rearward and the hook 34 to swing outward to such an inclination as shown by broken lines in Fig. X, that the action of the compressed spring 53 will cause the drawer hook 30 to slide and swing downward free of the hook 34, and the continued action of the compressed spring 53 throws the cash drawer outward in well known manner.

Five push buttons have been illustrated and described, of which the end and middle button are inactive and the intermediate buttons 11 are active to operate the lock; but it will be understood that the push buttons can be transposed and the rock bar 13 adjusted along the rock bar 12 so that'the active buttons may be in the middle or at either end of the series; or by lengthening or shortening the swiveled cross bar, any desired arrangement of the active push buttons may be made with reference to the inactive buttons.

We claim:

1. Lock releasing me h ni m for Gash when pushed in unison to impinge the ends of the cross bar and swing the rock bar and a releasable drawer lock operatively associated with the rock arm. n 7

2. Locking means for cash drawers and the like in a case having a spring compressed when the drawer is closed tending to throw it open, including a spring controlled hook on the drawer and a spring controlled hook on the case engaged when the drawer is closed, plate over the case hook, hook normally engaging ing the hooks together, swinging the plates fingers and releasing the hooks.

WILLIAM E. DUNNING. JACOB BACHOFEN.

fingers on the case the plate tor lockand means for a hinged controlling for disengaging the 

